Improvement in ore or quartz crushers



J. FOWLER.

Ore Crusher.

Patented Sept. 18, 1866.

Inventor:

Wiinesses= I M UNITED STATES PATENT. OFFICE.

JOSEPH FOWLER, OF RAHI/VAY, NEW JERSEY.

IMPROVEMENT IN ORE OR QUARTZCRUSHERS.

Specification forming part of Letters Patent No. 58,089,:dated September18, 1866.

To all whom it may concern:

Be it known that I, Josnrrr FowLER, of Rahway, in the county of Unionand State of New Jersey, have invented and made a certain new and usefulImprovement in Ore-Crushers; and I do hereby declare the following to bea full, clear, and exact description of my said invention, referencebeing had to the annexed drawings, making part of this specification,wherein- Figurel is avertical section of said crusher at right angles tothe actuating-shaft, and Fig. 2-is a plan of the said crusher.

Similar marks of reference denote the same parts.

a jaw connected directly at its upper end to a crank or eccentric, andhung at its lower end by links, so that the jaw has an up-and-downmovement, to rub and grind the ore, as well as a forward-and-backmovement to crush the V ore, thereby increasing the efficiency of saidcrusher; and I sustain the lower ends of the jaws by eccentric hearingsor shafts thatare adjustable for regulating the distance between thejaws, and for allowing the jaws to yield if any hard piece, such as achisel or drill-point, should accidentally fall into the hopper.

In the drawiii gs, a a are the side frames, with boxes I) b, sustainingthe actuating-shaft c, propelled by competent power. 1 and 2 2 arecranks or eccentrics in or around the shaft 0. d is my improved jaw,extended in the form of a box or bearing, 3, for the crank or eccentric1.

At the bottom of the jaw d are the links 0 c, hinged suitably to saidjaw, and fis a shaft passing through the links 6, and with eccentricjournals in the main frames at, as seen more clearly in the detachedFig. 3.

The eccentric journals of the shaft f may both be smaller than theportion of the shaft that takes the links 0. In that case said shaft andlinks will have to be put into place before the frames are put together5 but if the eccentric journal at one end of f is made larger than theshaft and on the same axis as the smaller eccentric journal at the otherend of the shaft, said shaft f may be slipped in or out-without havingto take the frames or a apart.

At the end of the shaft f is a lever, g, that is weighted, and aneccentric, h, on the frame a, or any suitable mechanism, determines theposition to which the lever g shall descend, and by thus adjusting theeccentric shaft f the bottom of the jaw cl is pressed nearer to or leftfarther from the opposite jaw, and hence the fineness of. the crushedore is regulated; and in case of a very hard substance getting into thecrusher the eccentric shaft f will turn by the pressure and allow it topass. The weight on the lever g, being movable, allows the adjustment tobe made so that the jaws will yield before the force is sufficient tobreak them.

The jaw is is constructed with side arms and actuated by theconnecting-rods &to the cranks 2 3;, substantially the same as in myaforesaid patent.

The eccentric shaft f lever g, and eccentric orsupport h are applied thesam e, and act as and for the purposes heretofore set forth in relatioto the shaft f, lever g, and eccentric h.

The surfaces of the jaws d and k may be roughened or formed with teeth,and the side plates, 1', of the hopper may be made adj ustable, as inthe aforesaid patent.

What I claim, and desire to secure by Letters Patent, is I 1. Theyielding eccentric bearing-shaftf or f, and weighted lever g or g,applied in substantially the manner specified, to keep the jaws at theirlower ends toward each other, but allow them to open or yield, as andfor the purposes set forth.

2. The combination of the jaws d and 7c, conneotingrods Z Z, and crankslan (ll 2 2, when tliejaw d is connected directly to the crank 1, andreceives the movement specified, for the purposes set forth.

3. The links 6, in combination with the eccentric yielding bearing f andmoving jaw d, as and for the purposes set forth.

In witness whereof I have hereunto set my hand this 8th day of May, A.D. 1866.

JOSEPH FOWLER.

Witn esses T. G. G. MOUNTAIN, CHAS. H. SMITH.

